Set-works.



W. H. TROUT.

7 SET WORKS.

APPLICATION FILED SEPTA, 1910.

2 SHEETS-SHEET 1.

Patented May 19, 1914.

INVE N TC:

WITNESSES H. TROUT.

SET WORKS.

APPLICATION FILED SEPT. 3, 1910.

Patented May 19, 1 914.

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IINVEN'T'DR BY%% W i'T'NESSES COLUMBIA PLANOGRAPH co UNITED STATldlfi OFFICE.

WILLIAll/L H. TROUT, 0F MILW'AUKEE, WISCONSIN, ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 ALLIS-CHALMERS MANUFACTURING COMPANY, A CORPORATION OF DELAWARE.

SET-WORKS.

oosen.

Application filed September 3, 1910.

To all whom it may concern.

Be it known that T, WILLIAM H. TROUT, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of lVisconsin, have invented a certain new and useful Improvement in SetWVorks, of which the following is a specification.

This invention relates to improvements in the construction of set works for saw mill carriages.

An object of the invention is to provide a set works for saw mill carriages which is simple in construction and eflicient in operation.

In saw mill set works as heretofore constructed, there have been in general use several arrangements of driving elements and slip connection connecting the power and the set shaft. In one of these arrangements, the slip connection inserted between the power applying mechanism and set shaft and necessary to prevent injury of the machine due to the momentum of the rapidly moving elements of the power mechanism, has been placed between the power rope drive and the power shaft. Another of these constructions has had the slip connec tion inserted directly between the power and the set shaft, while still another construction has had the slip connection placed between an intermediate driving shaft having geared connection with the gage and set shafts, and the power shaft.

Vith the present invention the power is admitted directly from a power shaft to the gage shaft, and from the column shaft to the set shaft, the slip connection being inserted between the gage shaft and the power shaft. WVith this arrangement the stresses resulting upon suddenly checking the rapidly moving power elements, are taken up in the driving elements on the power side of the slip permitting means, thus leaving the gage and set shafts free from the burden of such stresses.

Another feature of the invention is that the moving power elements are all located below the carriage floor, thereby preventing injury to the operator.

Still another feature is the simplicity and efliciency of construction of the slip connection between the power and the gage shafts.

A clear conception of one embodiment of the invention can be obtained by referring Specification of Letters Patent.

Patented May 19, 1914.

Serial No. 580,320.

to the accompanying drawings in which hke reference characters designate the same or s milar parts in like or different views.

Figure 1 is a side view of a fragment of a saw mill carriage having a set works and ts power means mounted thereon. Fig. Z is a section through power elements of the device shown in Fig. 1, the section being taken on the line II-IT of Fig. 1, looking in the direction of the arrow. Fig. 3 is an enlarged, fragmental, central, vertical section through the driving connections between the power and set shafts of the set works shown in Fig. 1.

The set works frame 16 is mounted upon timbers forming the deck of the carriage 14, and has its central axis inclined at an angle of approximately 30 degrees away from the plane of the saw, not shown. The carriage 14 is carried by wheels 15 running on tracks or guides which are supported upon the floor of the mill in the usual manner, and which extend parallel to the plane of the saw, see Fig. 1.

The lower and upper power frames 4, 6, are supported by means of rods 7 which are fixed to lugs formed on either side of the frame 16, and are suspended from the carriage frame 14 by means of a suitable bracket 47 fixed to a rod connecting the frames 4, 6. The power shaft 8 which carries a driving pulley 5 at its lower end, passes through and bears in an eccentric sleeve 48, which sleeve is rotat-ably mounted in the upper frame 6 and has an arm outwardly projecting from its upper portion. The power shaft 8 is inclined toward the frame of the saw and forms an angle of about 60 degrees with the horizontal plane.

The large pulley 13, having the sheave 2 formed in one with and at the lower end thereof, is rot-atably mounted on a shaft 50 having its axis parallel to that of the power shaft 8, and located to one side of the driving pulley 5, see Figs. 1 and 2. The upper and lower ends of the shaft 50 are fixed in bearing or supporting boxes 49, which boxes are carried by adjusting bolts mounted in the frames 4, (3. The bearing box carrying bolts are so disposed that during adjustment of the boxes 49, the axis of the shaft 50 either approaches or recedes from the axis of the power shaft 8 along a straight line. The small pulley 44, having the sheave 3 formed in one with and at the lower end thereof, is rotatably mounted upon a shaft 46 having its axis parallel to that of the shaft 8 and located to one side of the pulley 5. The upper and lower ends of the shaft 46 are fixed in bearing or supporting boxes 45 which boxes are adjustably mounted on bolts mounted on the frames 4, 6. During the adjustment of the boxes 45 by means of the adjusting bolts, the axis of the shaft 46 either approaches or recedes from the axis of the power shaft 8 along a straight line. The axes of the shafts 46, 50, are, however, at all times approximately parallel to the axis of the shaft 8. It will be noted that by slightly rotating the eccentric sleeve 48 in a clockwise direction from the position shown in Fig. 2, the pulley 5 will be released from its coaction with the pulley 44 and will be carried into coaction with the periphery of the pulley 13 instead.

With the set works properly installed, a driving rope of which the axis 60 alone is shown, coacts with about two-thirds of the periphery of the sheave 2, after which it passes between the sheaves 2, 3, and further coacts with about two-thirds of the periphery of the sheave 3, see Fig. 2. The driving rope enters the sheave 2 from a tension sheave 1 and after emerging from the sheave 3, enters the fourth sheave, not shown, at the forward end of the carriage track, from which it returns to the tension sheave 1. The details of this rope drive have been omitted since they form no part of the present invention and are similar to those shown in my Patent No. 798,234, dated Aug. 29, 1905.

The upper end of the power shaft 8 is slightly tapered along the portion 29 and is mounted in a bearing 30 formed in the upper end of the frame 16, see Fig. 3. The gear 23 which is housed in the frame 16, is fixed to the upper end of the shaft 8 below the portion 29, by means of a key 28 and set screw 39, of which there may be a number if so desired.

The gage shaft 21, is mounted in a bearing at the upper end of the frame 16 adjacent the bearing 30 of the shaft 8, and a second bearing 42 provided with a bushing 41 at the lower end of the frame 16. The axes of the shafts 8, 21, intersect and form an angle of approximately 60 degrees with each other. An oil well or pit formed above and adjacent the upper end of the shaft 8 is normally filled with a lubricating material and serves to lubricate the upper bearings of both the shafts 8, 21.

A sleeve 31, having an outwardly flaring flanged top, is mounted upon the shaft 21 and is longitudinally shiftable thereon along a spline 37, see Figs. 1, 3. The friction disk or cone 22 is mounted upon the sleeve 31 and is longitudinally shiftable thereon along the spline 131. The gear wheel 24 which meshes with the pinion 23 carried by the shaft 8, surrounds the sleeve 31 and is intermediate the upper flange formed on the sleeve 31 and the friction disk or cone The friction board disk 34, which may be either fiber, paper, press-board, or other suitable material, is inserted between the upper surface of the gear wheel 24 and the lower surface of the flange formed at the upper end of the sleeve 31. The conical shaped friction board disk 33 is inserted between the upper surface of the friction disk or cone 22 and the lower correspondingly formed surface of the gear wheel 24. The nut 32 which has screw thread coaction with the lower end of the sleeve 31, can be ad justed to force the friction cone 22 upward along the sleeve 31 or to lower same, thereby varying the degree of coaction between the disk or cone 22, friction board disk 33, gear wheel 24, friction board disk 34, and the flange formed at the upper end of the sleeve 31.

The gage shaft pinion 25 is mounted upon the gage shaft 21 slightly above the bearing 42 at the lower end thereof. The pinion 25 is fixed to the gage shaft 21 by means of a spline 37, key 36, and set screws 38, of which but one is shown although any desired number could be utilized. Jack screws 35 which protrude from the upoer end of the pinion 25, can be adjusted to maintain the proper relation between the teeth of the gear wheel 24 and the pinion 23.

The set shaft 27, which is mounted in adjustable bearings 127 carried by the carriage frame 14, has an axis which intersects the axis of the gage shaft 21 at approximately right angles. The set shaft gear 26 is keyed to the set shaft 27 by means of keys 43. This gear 26 meshes with the pinion 25, being thereby adapted to be rotated upon rotation of the gage shaft 21. An oil pocket or well 40, which is formed in the center of the pinion 25, has passages extending outwardly to the teeth of the pinion 25 and gear 26, so that lubrication, preferably oil soaked waste, carried by the well 40 will serve to lubricate both the gear 26 and pinion 25. The set shaft 27 is connected in the usual manner to drive the knees 17 which are mounted 011 the head blocks of the carriage 14, so that as the set shaft 27 is rotated the knees 17 will either approach or recede from the plane of the saw. The log guard 18 which is fixed to the frame 16, protects the set works from injury by logs which may pass the knees 17.

The upper end of the gage shaft 21 carries a ratchet wheel 20, dial 19 and other mechanisms not shown, for determining the proper width of the cut to be taken. The details of this mechanism are clearly shown and described in my prior Patent 'No.

7 93,406, dated June 27,1905,and are omitted from this description since they form no part of the present invention. The operating lever 9 is pivoted to the lower portion of the frame 16 by means of a pin 11 and has its lower overhanging end connected to the arm of the eccentric 48 by means of a link or connection 12. The spring 10 serves to retain the lever 9 in central position so that the pulleys 5, 13, 44 do not coact with each other.

During the normal operation of the device and while the saw is in operation upon a log being carried by the carriage 14, the lever 9 is in central position and none of the driving members or pulleys 15, 5, 44 coact. With the lever 9 in extreme forward position as shown, the periphery of the pulley 5 contacts with the periphery of the pulley 44, and as the pulley 44 is rotated by the rope coacting with the sheave 3, the pulley 5 is also rotated. The driving rope having the axis 60, has a motion in the direction of the arrows, see Fig. 2, thus giving the driving pulley 5 an anti-clockwise direction of rotation. Rotation of the driving pulley 5 is transferred to the power shaft 8, from the power shaft 8 through the pinion 23 and the gear wheel 24, from the gear wheel 24 through the friction disks 33, 34,-to the sleeve 31, and gage shaft 21. Upon rotating the gage shaft 21 the pinion 25 is rotated, which in turn rotates the gear 26 and hence the set shaft 27 to which the gear 26 is fixed. This revolution of the set shaft 27, with an anti-clockwise rotation of the driving pulley 5, causes the knees 17 to approach the plane of the saw.

WV hen the sawing of the log has been completed, the lever 9 which has been in central position during the cutting, is thrown to the extreme rear or receding position, this move ment of the lever 9 causing the eccentric 48 to move the driving pulley 5 away from central position and into coaction with the pulley 13, thus imparting a clockwise rotation to the pulley 5. With clockwise rotation of the pulley 5, the set shaft 27 revolves so as to cause the knees 17 to recede from the plane of the saw.

Since the movement of the driving rope and pulleys 13, 44, is very rapid, it will be noted that the pulley 5'will store up considerable momentum during its rotation by contact with the driving pulleys in either setting or receding position. WVith a rigid driving connection between the power shaft 8 and the gage shaft 21, a sudden checking of the gage shaft 21 would cause undue stresses to fall upon the power and gage shafts, the driving connections between them and the checking mechanism for the gage shaft.

The slip permitting means, consisting of the friction disks 33, 34, and the elements coacting therewith, prevent the over-travel.

of the shaft 8 caused by the momentum of the pulley 5, from affecting the motion of the gage shaft 21 to a marked degree, the energy stored in the pulley 5 and released in stopping same, being absorbed by the power shaft 8 and the slip connection between the members 22, 24, 31. Y

The use of a flat friction disk 34 on one side of the gear wheel 24, and a conical friction disk 33 on the other side thereof, provides a simple and efiieient slip connection between the gear wheel 24 and gage shaft 21. By means of the nut 32 the coaction between the gear wheel 24 and the friction disks can be carried to any desirable degree.

The proper lubrication of the pinion 25 and gear 26 is also insured by forming the oil well or pocket within the pinion 25 of such capacity that it will hold a supply of oil sufficient to provide lubrication between predetermined periods, such as periods of overhauling of the set works.

The downward inclination of the power shaft 8, moreover, permits placing of the power pulleys 5, 13, 44, below the deck of the carriage 14, thereby eliminating danger of injury to the operator resulting from contact with moving machine elements. Mounting the pulleys 13, 44 to rotate on their shafts 46, 50, with bushings or sleeves placed intermediate the shafts and pulley hubs, provides longer bearings for the pulleys 13, 44 and also provides an efficient means of lubrication between the shafts 46, 50 and pulleys 13, 44. The intermediate sleeves are loosely mounted on the shafts 46, 50, and have their lower ends extended into and bearing in annular recesses in the lower frame 4. The lubrication for the bearing surfaces between the shafts 46, 50, and the inner surfaces of the sleeves, as well as the bearings at the lower ends of the sleeves is provided through openings extending outward from the centers of the shafts 46, 50.

It should be understood that it is not desired to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

It is claimed and desired to secure by Letters Patent,

1. In a saw mill set works, a carriage having an operators stand, a set shaft, a gage shaft geared to said set shaft and forwardly inclined toward said operators stand, a slip permitting means mounted on and concentric with said gage shaft, a power shaft geared to said slip permitting means and extending downwardly and inclined to extend underneath said operators stand, and means underneath said stand for reversibly rotating said power shaft.

2. In a saw mill set works, a power shaft, means for rotating said power shaft in opposite directions, a gage shaft adjacent said power shaft, slip permitting means on said gage shaft, gearing connecting said power shaft and said slip means, a set shaft adjacent said gage shaft, and gears connecting said gage and set shafts.

3. In a saw mill set works, a carriage, a power shaft mounted on said carriage, means for rotating said power shaft in opposite directions, said means being located below the deck-of said carriage, a gage shaft adjacent said power shaft, slip permitting means on said gage shaft, gearing connecting said power shaft and said slip means. a set shaft mounted in said carriage and having its axis perpendicular to the axis of said gage shaft, and a driving connection be tween said gage and set shafts.

4. In a saw mill set works, a power shaft, a gage shaft adjacent said power shaft, a pinion on said power shaft, a gear on said gage shaft, said gear meshing with said pinion, a slip connection between said gear and said column shaft and concentric to said latter, a set shaft adjacent said column shaft,

and gears connecting said gage and set shafts.

5. In a saw mill set works, a carriage having an operators stand, a set shaft, a gage shaft geared to said set shaft, a slip permitting means mounted on and concentric with said column shaft, a power shaft geared to said slip permitting means and extending underneath said operators stand, and means underneath said stand for reversibly rotating said power shaft.

6. In a saw mill set works, a power shaft, a gage shaft, slip permitting means mounted on said gage shaft, gearing connecting said shafts through said slip permitting means, a set shaft, and gears connecting said gage and set shafts.

I11 testimony whereof, I afiX my signature in the presence of two witnesses.

W. H. TROUT.

Witnesses H. C. CASE, W. H. LIEBER.

Copies of this patent may be obtained for fiveeents each, by addressing the Commissioner of Patents, Washington, D. O.

It is hereby certified that in Letters Patent No. 1,097,271, granted May 19, 1914, upon the application of William H. Trout, of Milwaukee, Wisconsin, for an improvement in Set-Works, an error appears in the printed specification requiring correction as follows: Page 4:, lines 23, 24:, and 31, before the word shaft for the word column read gage; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 9th day of June, A. D., 1914.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents. 

